Possible to switch pumps?

mightywhitey5269 · 02-10-2010, 12:24 AM

I have the 94 in my sig and the injection pump is startin to give out on me. My question is can I put a 180 or 215 pump in its place? i got the 160 pump now and figure they are all relatively the same price from what i've seen, so why not upgrade right? haha And whats all involved in doing this? Thanks guys- Andrew.

***superdutycummins*** · 02-10-2010, 12:26 AM

It will bolt right up. There might be a different core charge if you are buying a 215 pump with a 160 core.

mightywhitey5269 · 02-10-2010, 07:09 AM

Ok thanks that was what I needed to know. Would anyone happen to know where I can get either a 180 or 215 pump for cheap

?

bh10 · 02-10-2010, 08:43 AM

Just send it in to a pump shop, it will be cheaper than buying a new (used) pump, in most cases.

OrangeP · 02-10-2010, 02:45 PM

dont forget 215 injectors, the 215 has bigger dv's as well

CATSTACKS · 02-10-2010, 02:51 PM

i would get a 180 pump... 215s start retarding timing over 2500rpm
which is fine unless you plan on a gsk... then you wont get your max performance from the 215... but if your goin for power your more than likely gonna get bigger dv's so who cares what a stock pump has an i right?

Dual K20s · 02-10-2010, 04:16 PM

Quote:

Originally Posted by CATSTACKS

215s start retarding timing over 2500rpm

Wrong. I would love to hear how you think this works though, I'm listening....

The timing retarding from the upper helix on the plungers happens in relation to rack travel and rack travel only.

CATSTACKS · 02-10-2010, 08:05 PM

Quote:

Originally Posted by Dual K20s

Wrong. I would love to hear how you think this works though, I'm listening....

The timing retarding from the upper helix on the plungers happens in relation to rack travel and rack travel only.

in relation to rack travel? about 2500rpm worth of rack travel? is when you start feeling it noticeably... im not talking about lugging it either im talking cruising throttle...

cbtoyz · 02-10-2010, 08:34 PM

On a 215 pump, they have a helix on the top of the plungers that retards the timing the more rack travel you get. Your problem must be a governor issue. Try a 4K kit.

OrangeP · 02-10-2010, 09:27 PM

ive heard the 215 will retard at 2800 or 2900, sure feels like it retards sooner like catstacks says

CATSTACKS · 02-10-2010, 10:26 PM

Quote:

Originally Posted by cbtoyz

On a 215 pump, they have a helix on the top of the plungers that retards the timing the more rack travel you get. Your problem must be a governor issue. Try a 4K kit.

if your talking about me, i dont have a 215... my truck never had one and its not from cali either...

ykdave · 02-10-2010, 11:22 PM

CATSTACKS, please do some reading up on the P7100 and RQVK gov before spitting out incorrect information!

rack travel is not directly related to rpms...

As stated above, the retard notched plungers (in the 215hp pumps) reduce timing in relation to the rack travel. Thus depending on your setup you could hit full rack travel just off idle and carry it all the way to defueling. Or.... because of the joys of a lean burn engine, you could spin the engine up to 3100rpm (appx full defuel for stock gov) with nothing more than a few mm of rack travel.

What you are 'feeling' around 2500rpm is the stock gov setup. The stock setup starts pulling fuel in the mid 2k's (slightly different depending on year/pump)